Bomb Plotter Scores Intelligence for CIA

WSJ's Evan Perez explains the CIA's role in placing an informant within a Yemeni terror group and acting as would-be bomb plotter aboard a jetliner this week. AP Photo.

This transcript has been automatically generated and may not be 100% accurate.

... the ... working with a ... foreign intelligence agencies ... the radio ... tell that she is still a ... long night AQAP ... that's important to develop Dizik huge who or for intelligence agencies both here and ... and and Italy's do you prefer for ... the last couple years have been struggling with the way to ... do it or not I'll Qaeda's top of the most deadly up to it ... and he effectively ... been infiltrated ... AQAP ... said he wanted to carry out a suicide mission they supplied him with another underwear bomb in and tell us that this bomb was ... more sophisticated than last correct ... that's right I mean the ... the the plot here is is very similar to what what that ended up not ... even on Christmas day in two thousand and nine ... when ... a bomber tried to do neither ... a bomb in his underwear ... on an airliner in Detroit ... in this case they had been a little more sophisticated they tried to to ... to put its second ... decade in case the first one failed ... the wind in Detroit in two thousand and nine failed ... to ignite and I'll because the fire ... with each of which are pretty well that they were trying to improve upon ... we believe that the intelligence agencies believe ... that ... it's the work of up ... of a AQAP Zen master bomb maker ... and who has been the target of CA drone strikes I've yet to kill him but ... but it appears that he is trying to improve its ... out before that happens no one reason we know that this wasn't ... this is obviously U S intelligence asset ... was because the high value detainee group wasn't activated I was nowhere about the high value detainee interrogation group of the ... what is that group and and to tell us a little bit more about what their marching orders are ... well the other group was actually created in response to the ... tothe out the ... Christmas day bombing iTunes ... and the Obama missed ration decided it was a weakness there in ... treating perhaps something to replace what was ... obviously controversial stage for creation group ... this group is run by the out by the FBI ... gets caught up to the folks in the C I a interrogators an analyst with TIAA and from the from other intelligence agencies in the US ... and what it what what happens to me that the dispatch ... it is a suspect ... who is in place of greens upper House ... Intelligence pot of terror tactics in it ... in this case the one that didn't happen ... and that's a clear signal that ... there was some control of this of this of honor that there was not ... that they had some confidence that this person was was indeed you know ... a good agent that they could trust ... and from understanding what happened is ... is that he presented himself as a farmer ... as of the sort of version two of the underwear bomber ... and that and instead ... came back to the ... tothe Saudis in the US and presented to the tothe pop ... and here we have a shot of the underwear bomber from two thousandnine ... at and tell us ... what's the TSA is responses there been any will there be what will we be seeing new security procedures at airports ... there are re evaluating what ... let's get the stitches already in place ... it's not clear that there's anything more that he can do ... keep in mind that these bonds both the underwear bomber and and this new ones I don't get a medal so there are signs that it very hard to detect ... up to ... the masses there is a ... is there some kind of ... signal from ... from the picture of of imports treating the sheen ... of something in someone's underwear they can check that the PCs are very hard to detect ... of wet weather relying on is the kind of intelligence that that that this out this operation show which is trying to infiltrate mixed reviews other ... intelligence to try to stop the thing before we get to the tothe